#include <stdio.h>

struct A
{
	int m;
	int n;
};
int main()
{
	struct A a,b;
	a.m = 10;
	a.n = 15;

	b = a;
	printf("b.m = %d, b.n = %d\n", b.m, b.n);
	return 0;
}
